[1]ZHANG Dong-jie.Quantitative Research of Driving Factors on Grassland Desertification over Last 50 Years in Gonghe Basin[J].Research of Soil and Water Conservation,2010,17(04):166-169.
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Quantitative Research of Driving Factors on Grassland Desertification over Last 50 Years in Gonghe Basin
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 04
Page number:
166-169
Column:
Public date:
2010-08-20
- Title:
- Quantitative Research of Driving Factors on Grassland Desertification over Last 50 Years in Gonghe Basin
- Keywords:
- Gonghe Basin; grassland desertification; driver; factor analysis
- CLC:
- X171.1
- DOI:
- -
- Abstract:
- Desertification is very serious in region of Gonghe basin in the upper of the Yellow River.Desertification is the main issue of environment deterioration in this region.The paper selected eight socio-economic and natural factors that included the rural population,livestock,arable land,grain output,the annual mean temperature,annual precipitation,annual strong wind days,the annual evaporation,and quantificationally studied the relationship between those factors and grassland desertification.The analyzed data covered about 56 years from 1953 to 2008.Using factor analysis of the basin,the drivers of grassland desertification were examined.The contribution rate is 53.75% in the grassland desertification of human activities in Gonghe basin during 1953-2008 period.Natural factors contributing to grassland desertification was 38.25%,more than 1/3.The contribution rate of human factors and natural factors was 7.99%.It showed that human activities impatcting the ecological environment was more than natural factors,and was the main driving factors of grassland desertification in Gonghe basin.
- References:
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